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<ul>
	<li><span>General</span><ul>
		<li><a href="index.jsp">Home</a></li>
		<li><a href="pls_coverage_time.jsp">PLS Coverage in Time</a></li>
		<li><a href="pls_coverage_space.jsp">PLS Coverage in Space</a></li>
		<li><a href="pls_time_counter_req.jsp">PLS Time Counter</a></li>
		<li><a href="change_dataset.jsp">Change Dataset</a></li>
	</ul></li>
	
	<li><span>Event Op</span><ul>
		<li><a href="event_req.jsp">Check Event Available</a></li>
		<li><a href="event_attendance_req.jsp">Estimate Attendance</a></li>
		<li><a href="event_examples.jsp">Events Examples</a></li>
	</ul></li>
	
	<li><span>User Op</span><ul>
		<li><a href="find_user_req.jsp">Find User</a></li>
		<li><a href="user_trace_req.jsp">Show User Trace</a></li>
		<li><a href="user_places_req.jsp">Find User Places</a></li>
		<!-- <li><a href="lda_req.jsp">LDA</a></li> -->
	</ul></li>
	
	<li><span>Density & Flows</span><ul>
		<li><a href="population_density_req.jsp">Density</a><ul><li>This operation allows to compute the heat map of people density in an area.</li></ul></li>
		<li><a href="od_matrix_req.jsp">Flows</a></li>
		<li><a href="population_density_places_req.jsp">Density Places</a></li>
		<li><a href="od_matrix_hw_req.jsp">Flows Home-Work Commute</a></li>
	</ul></li>
	
	<li><span>Tourists</span><ul>
		<li><a href="">...</a></li>
	</ul></li>
	
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